发明名称 |
FORFARANDE FOR NITRERING VID LAGT TRYCK MED ANVENDNING AV GLIMURLADDNING |
摘要 |
A method for nitriding materials using a glow discharge in an atmosphere of nitrogen or gas mixture at a pressure between 1 . . . 100 mtorr (0.13 . . . 13.3 Pa). Nitriding treatment can be combined with a plasma aided coating process and the temperature control during both processes can be achieved with the aid of separate filament. Nitriding unit can be a separate rig or a part of the coating unit. The method can be used to increase the wear resistance of a work piece by increasing the hardness of its surface. Because of the low pressure used in the nitriding process the same equipment can be used to produce a separate hard and wear resistant compound or alloy coating on the nitrided surface to further increase the hardness of the uppermost surface. The main field of the method is in increasing the wear and corrosion resistance of machine parts and tools. |
申请公布号 |
SE8205582(D0) |
申请公布日期 |
1982.09.30 |
申请号 |
SE19820005582 |
申请日期 |
1982.09.30 |
申请人 |
KYMI KYMMENE OY |
发明人 |
A S * KORHONEN;E H * SIRVIO;M S * SULONEN;H A * SUNDQUIST |
分类号 |
C23C8/36;C23C14/48;C23C28/00 |
主分类号 |
C23C8/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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